Rillito Forecast

Air Quality Hourly Forecast | Rillito

Click on each day to view forecast.

Tuesday Forecast:


PM10

31 AQI
24-hr Avg: 33 µg/m3

Wednesday Forecast:


PM10

36 AQI
24-hr Avg: 39 µg/m3

Thursday Forecast:


PM10

39 AQI
24-hr Avg: 42 µg/m3

Friday Forecast:


PM10

41 AQI
24-hr Avg: 44 µg/m3

Saturday Forecast:


PM10

33 AQI
24-hr Avg: 36 µg/m3

Air Quality By Pollutant:

Pollutant
Tuesday
1/18/2022
Wednesday
1/19/2022
Thursday
1/20/2022
Friday
1/21/2022
Saturday
1/22/2022
PM10
31
36
39
41
33
Pollutant
TUE
WED
THU
FRI
SAT
PM10
31
36
39
41
33
O3 = Ozone, PM10 = Particles ≤ 10 microns, PM2.5 = Particles ≤ 2.5 microns

Forecast Discussion:

The majority of the clouds that spread over the state last week were from an area of low pressure that was sitting off the coast of Baja. That low slowly moved northward this weekend and was off the coast of California. Finally, the low started pushing eastward yesterday and is now moving through Arizona today. As the low moves through, there will be a slight chance of rain during the day before chances quickly come to an end this evening. Not expecting much in the way of rain, with some locations seeing nothing and the luckiest few places seeing between 0.01 and 0.05 inches.

After this system moves east of the state later tonight into tomorrow, high pressure will build back into the Southwestern United States, resulting in clearer skies, mainly light winds, and afternoon highs rising back into the upper 60s through Friday.

On Saturday, there is a chance of another area of low-pressure diving southward through Utah and into Arizona. Given the overland trajectory of this system, it will likely be dry, but it may help to cool temperatures into the mid to low 60s and increase breezes a bit this weekend. We will iron out the details as the weekend gets closer.

As for air quality, forecasting PM-10 to be in the Good AQI category through the forecast period.

- M. Pace
ADEQ Meteorologist


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